Luciobarbus subquincunciatus (Günther, 1868)
Distribution in the area. Endemic. Euphrates and Tigris drainages including the Karun from southern Anatolia to the Shatt Al-Arab and the Al-Hammar marshes.
Remarks. This species is very rare all over its range and might be at the border of extinction. However, it seems to have been always rare in Turkey and Iran and mostly occurred in Iraq and maybe Syria. Its ecology and the reasons for its decline are unknown as it has never been studied in detail. No captive breeding seems to be in place and no conservation action is taken actually.